Kill Intruder is a tower defense game where you plant, merge, and upgrade warrior plants to fend off approaching ant intruders. Use gold to unlock plants, merge same-level plants to boost their power, and strategically place them on the battlefield to protect your territory.
Kill Intruder delivers an addictive tower defense experience with simple yet engaging merge mechanics. The colorful, cartoonish art style is charming, and the gradual introduction of merge and placement strategies keeps it accessible for new players while offering depth for strategy fans. The early levels do a great job teaching mechanics without overwhelming, making it easy to pick up and play.
Highlights:

The tutorial starts with a pep talk—time to turn plants into ant-fighting machines!

Merge time! Two level 1s become a level 2—plants are getting a glow-up!

First ant attack! Our level 3 plant is throwing punches (or leaves?) like a pro!

Victory dance! A grumpy red fruit celebrates our win—who knew veggies could be so sassy?
Instructions:
1. Use gold to plant level 1 warrior plants. 2. Merge two same-level plants to upgrade them (drag one onto the other). 3. Place upgraded plants on the battlefield to fight approaching ants. 4. Collect gold from defeated ants to plant more. 5. Repeat merging and placing to defend against waves!